so when you get into that environment, excellent issue for campaigns to visualize where they can get benefits by focusing on turnout or registration of their supporters as opposed to merely trying to persuade them. now, this you i don't know if it's 8% are not present that are persuadable. the campaigns will focus on them. but we have a far better science now in understanding what motivates people to vote. and a lot of it -- the science of mobilization turnout has gotten much better. the science of persuasion, it's still pretty vague. and so i do think that there's been a sort of reinvesting in a lot of mobilization techniques in part because of what we've learned in the last decade. sunday of these two separate things. you certainly know what you give to somebody what you can do to increase their likelihood of voting. and now have better targeting techniques through data to forget who you talk to and about what. and so i don't think of it as necessarily message or targeting, but good campaigns do targeting and analysis on the front and that allows them to understand in a far more pr